I own a model SHPM78W56N/01 that is starting to throw E:15 Watertap codes. There is a large rubber curtain-like gasket glued to the inside of the door that has torn in half. I looks like it draped into to tub to keep things dry. It is leaking water, the insulation at the bottom is wet and there was water enough to trip the float limit switch. I am having a hard time finding a replacement part number, doesn't show up in exploded parts views across the different sites I used. Any suggestions?

Vintmaggs at yahoo.com